9121 to 9132 of 13722 results
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An interhemispheric study of the ground magnetic and ionospheric electric fields during the substorm growth phase and expansion phase onset
Read more of: An interhemispheric study of the ground magnetic and ionospheric electric fields during the substorm growth phase and expansion phase onsetHF radar data during equinoctial, small IMF By conditions have enabled the substorm growth phase to be studied in both hemispheres. This has revealed highly conjugate behavior during the substorm […]
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Functional biomolecules of Antarctic stromatolitic and endolithic cyanobacterial communities
Read more of: Functional biomolecules of Antarctic stromatolitic and endolithic cyanobacterial communitiesFor activity and survival in extreme terrestrial Antarctic habitats, lithobiontic cyanobacteria depend on key biomolecules for protection against environmental stress and for optimization of growth conditions. Their ability to synthesize […]
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Ice-nucleating bacteria from the guts of two sub-Antarctic beetles,Hydromedion sparsutum and Perimylops antarcticus(Perimylopidae)
Read more of: Ice-nucleating bacteria from the guts of two sub-Antarctic beetles,Hydromedion sparsutum and Perimylops antarcticus(Perimylopidae)The site of ice nucleation in the freeze-tolerant, sub-Antarctic beetleHydromedion sparsutumhas been investigated. Ice+bacteria, active at above −2.0°C, were isolated from the guts of beetles and identified as a fluorescentPseudomonasspecies. […]
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Antarctic snow record of cadmium, copper, and zinc content during the twentieth century
Read more of: Antarctic snow record of cadmium, copper, and zinc content during the twentieth centuryA snowpit in Coats Land, Antarctica, has been sampled in order to obtain a record of Cd, Cu and Zn covering the period 1923–1986. The snowpit record gives an indication […]
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Comparison of Holocene electrical records from Dome C and Vostok, Antarctica
Read more of: Comparison of Holocene electrical records from Dome C and Vostok, AntarcticaAs part of the European Project for Ice Coring in Antarctica, a new deep ice core is being drilled at Dome C. Two electrical methods have been used on the […]
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Mafic dike swarms in the South Shetland Islands volcanic arc: Unravelling multiepisodic magmatism related to subduction and continental rifting
Read more of: Mafic dike swarms in the South Shetland Islands volcanic arc: Unravelling multiepisodic magmatism related to subduction and continental riftingEight groups of mafic dikes and related high-level stocks cut Triassic accretionary complex and Mesozoic magmatic arc formations on Livingston Island. Some are affected by silicic/sericitic alteration, related to Cretaceous […]
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A comparison of chlorophyll/nutrient dynamics at two survey sites near South Georgia, and the potential role of planktonic nitrogen recycled by land-based predators
Read more of: A comparison of chlorophyll/nutrient dynamics at two survey sites near South Georgia, and the potential role of planktonic nitrogen recycled by land-based predatorsThere is an apparent mismatch between the high carbon demand of seals and seabirds breeding on the subantarctic island of South Georgia and the overall low primary production measured in […]
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Foraging white-chinned petrels Procellaria aequinoctialis at risk: from the tropics to Antarctica
Read more of: Foraging white-chinned petrels Procellaria aequinoctialis at risk: from the tropics to AntarcticaIn the Southern Ocean white-chinned petrels Procellaria aequinoctialis form the majority of the bird bycatch in longline fisheries. Satellite tracking of breeding birds from the Crozet islands and from South […]